Works for all platforms and all regions. No restrictions

To get Battle Pass on PC/PS, you need to link your xbox account to your main Activision account

Instruction manual:
1. Follow the link and create an account
https://www.xbox.com/ru-RU/live
2. Follow the link from point 1 and click log in, then finish creating a profile (specify the age of 18+)
3. Follow the link to your main Activision account and link the xbox
https://s.activision.com/activision/profile
As a result, you must have an xbox + account linked to your platform (Steam/Battle net/PlayStation)

To complete the order, you will need data from your xbox account (email + password)